If the coefficient of determination is 0.975, then what may be said about the slope of the regression line?
A) It must be positive.
B) It must be negative.
C) It could be either positive or negative.

Question

Quizplus · Accepted Answer

The coefficient of determination (R-squared) is a measure of how well the regression line fits the data, ranging from 0 to 1. In this case, the coefficient of determination is 0.975, indicating that 97.5% of the variation in the dependent variable can be explained by the independent variable(s). It does not provide any information about the sign (+/-) of the slope of the regression line. Therefore, the slope could be either positive or negative.

If the Coefficient of Determination Is 0